Multiplying a 3x3 identity matrix by matrix A

Computing 2A + 4I₃ using scalar multiplication and matrix addition

Computing -4B + 2I₂ using scalar multiplication and matrix addition

Multiplying the 2x2 identity matrix I2 by matrix B

Multiplying a 4x4 identity matrix by the scalar zero

Verifying two matrices are multiplicative inverses

Verifying multiplicative inverses by matrix multiplication

Testing if two matrices with swapped entries are multiplicative inverses

Verifying matrices E and F are multiplicative inverses